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Offer pnstrdup to frontend code

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We already had it on the backend.  Frontend can also use it now.

Discussion: https://postgr.es/m/20191204144021.GA17976@alvherre.pgsql
This commit is contained in:
Alvaro Herrera
2019-12-04 19:36:06 -03:00
parent b1abfec825
commit 0b9466fce2
6 changed files with 36 additions and 35 deletions
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27
src/common/fe_memutils.c
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@ -142,6 +142,33 @@ pstrdup(const char *in)
return pg_strdup(in);
}
char *
pnstrdup(const char *in, Size size)
{
char *tmp;
int len;
if (!in)
{
fprintf(stderr,
_("cannot duplicate null pointer (internal error)\n"));
exit(EXIT_FAILURE);
}
len = strnlen(in, size);
tmp = malloc(len + 1);
if (tmp == NULL)
{
fprintf(stderr, _("out of memory\n"));
exit(EXIT_FAILURE);
}
memcpy(tmp, in, len);
tmp[len] = '\0';
return tmp;
}
void *
repalloc(void *pointer, Size size)
{